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The DVVK-4F FLEX VENT KIT includes the following compo-
nents:
•
(1) Horizontal Termination Cap
•
(1) 4-foot section of Flex vent with spacers (4" flue/7" outer
pipe)
•
(1) 4" diameter Flue adapter collar
•
(1) 7" diameter Outer Vent adapter collar
•
(1) Wall Firestop/Thimble Assembly
•
Hardware pack that includes band clamps and screws
Flex venting can be installed either vertically or horizontally
off of the DVD Series fireplaces. When installing a horizontal
vent run from top connections, maintain at least ½" rise
for every 12" of vent run. When venting horizontal off the
rear vent connections, allow a minimum rise of 2". Refer to
Figure 44 when mounting termination near vinyl siding.
CAUTION: Always stretch and secure venting with wire or
metal strapping to ensure that the horizontal runs do not sag.
If space permits, it is generally easier to attach venting in the
top vent configuration.
Because of sharp edges, always use gloves when handling
the flex vent components.
Vent connections should overlap a minimum of 1" for proper
sealing.
Always follow the general venting requirements for vent
terminal location, vent lengths, and clearance to combustible
materials.
INSTALLATION
1.
Unpack vent components and check that all items are included.
2.
Check to see that the vent spacer springs are located around the
flue vent at 8" and 12" intervals along its length. See Figure A. If not,
stretch the spacer springs to about 15" long and wrap them around
the flue, then interlock the ends of each spring about 2". See Figure
B. Maintain equal distance between spring spacers.
3.
Remove the 6-⅝" diameter Vent collar from the fireplace. Replace this
collar with the 7" diameter Flex Vent adapter collar provided with the
vent kit.
4.
Slide the Flex Vent flue pipe into the Outer Flex Vent pipe.
Page 42
DVVK-4F FLEX VENT INSTRUCTIONS
5.
Install the Wall Firestop/Thimble assembly as required through the
wall. Refer to the venting charts in the fireplace manual to determine
the proper height and size of the vent opening. The minimum opening
should be 9" wide by 11" high. The minimum combustible clearance
from the horizontal vent is 1" from sides and bottom, and 3" above the
vent pipe. See Figure D.
6.
In most cases, after determining the length of the vent that is
needed, it may be easier to install the flue and outer vent pipes to the
Termination Cap first, then from the outside, feed the venting through
the wall to the fireplace.
7.
If the venting is to long, trim off any excess vent before attaching the
vent end connectors.
CAUTION: Do not use force when installing the Horizontal
Vent Termination into the flex venting. Always stretch venting
out first, then cut off excessive vent material prior to sliding
the vent termination into the flue and inlet venting. Forcing
the termination cap into the flex venting will deform the flue
venting, which will restrict the exhaust gases, and cause
improper operation of the fireplace.
8.
Attach the Termination Cap to the outside of the house.
9.
Prior to making the vent connections, apply high temperature sealant
(1000 degree F min.) to the vent connections before securing with the
band clamps provided. Note: the flue pipe end without the adapter
is to be installed to the Termination Cap.
10. Apply sealant to the outside of the flue pipe adapter and connect
to the flex flue pipe. Then insert the adapter into the fireplace flue.
Secure flue adapter to the fireplace flue with a minimum of two screws
provided. See Figure C.
11. Attach the Outer Vent pipe to the 7" diameter Collar on the fireplace
with a large band clamp provided. Sealant may also be used on the
outer vent connections.
12. Check all vent connections for tightness. Make sure horizontal venting
has the proper rise and combustible clearances required. Refer to
venting charts in fireplace instruction manual.
38714-5-0920
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